Strepsirrhini is one of Lemur's ancestors. It evolved on its own in Madagascar. It have a same free attitude like Koala.
Scientific Classification of Strepsirrhini:
Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Primates
Habitat
Strepsirrhini mostly lives in Madagascar, but they also could be found in south-east Asia and Africa. Strepsirrhini were in south-east Asia and Africa because mostly of their environment and sometimes there are human hunters captured them and bought them to south-east Asia and Africa from Madagascar.
Just like lemur, strepsirrhi relies on scent a lot and they uses scent to track smell and mark their territory. They also use scent to attack their predators so it could gain some time to run away. When they mark their territory, other strepsirrhi will know that this is the it's territory and won't go in unless they are interested in this territory.
Environmental Pressure
As only their eyes and smell are the only thing that will help them when there's a predator hunting them, so they have smell helping them to escape their predators and hunt their prey. In case of other strepsirrhini have decided to go into its territory they would know that this territory actually belongs to other strepsirrhini.
Behavior 2
When strepsirrhini are going into new territory, they usually move in large groups such as lemurs. They do this so that they could spread the area to see are there predators out there. If there is a predator attacking them, they split into small groups so they could lessen the chance of being caught by predators.
Environmental Pressure
As strepsirrhini does not have attack power except for the smell, they move in big groups so they could lower their chance of being caught by their predators.
Structual
Nose (structual 1):
Their moist nose is actually connected to the upper lip, which connects to the gum so they could not have much facial expression. This is unique because lemur and other animals like the monkey and baboons did not have their noise connected to their upper lip.
Environmental Pressure
This helps them so they could help them breath easier. Also, other cowardly animal saw strepsirrhini's facial expression they might run away because they felt scared.
Toothcomb (structual 2):
Strepsirrhini have toothcomb, which is tightly clustered incisors and it is canine teeth. They use the toothcomb to groom themselves so they could have a better appearance. They also use this to grab the trees and branches to swing around in order to get food.
Environmental Pressure
As strepsirrhini might not have any thing to grab the trees and branches at the past, they have evolved toothcomb so they could grab trees and branches easier to run away and get food.
Physicological
Brain of Strepsirrhini
Strepsirrhini's brain and body ratio is smaller so they have a lower intelligence, unlike lemur. However, their brain's olfactory lobes are larger, therefore they strongly reliance on smell. Other animals such as Coyote and Wolves are also depending on smell.
Ears of Strepsirrhini
Strepsirrhini's ears are very sensitive, allowing them to move independantly on their own, so they can capture sound even more clearly than other mammals. If there is a predator coming close, they could hear the noise that they make and run into the opposite direction.
Environmental Pressure
As strepsirrhini does not have weapons except for smell, so they have ears so they could sense predators and preys.
Extinct Pressure
Strepsirrhini are in a danger or extinction because of human hunting them for pets, illegal trade and money. All of this happened because of human's greed and their needs. Also there are temperature changes in the environment so they might not be able to get used to the new environment.
Ancient Animal - Strepsirrhini
Strepsirrhini is one of Lemur's ancestors. It evolved on its own in Madagascar. It have a same free attitude like Koala.
Scientific Classification of Strepsirrhini:
Habitat
Strepsirrhini mostly lives in Madagascar, but they also could be found in south-east Asia and Africa. Strepsirrhini were in south-east Asia and Africa because mostly of their environment and sometimes there are human hunters captured them and bought them to south-east Asia and Africa from Madagascar.Behavior 1
Just like lemur, strepsirrhi relies on scent a lot and they uses scent to track smell and mark their territory. They also use scent to attack their predators so it could gain some time to run away. When they mark their territory, other strepsirrhi will know that this is the it's territory and won't go in unless they are interested in this territory.As only their eyes and smell are the only thing that will help them when there's a predator hunting them, so they have smell helping them to escape their predators and hunt their prey. In case of other strepsirrhini have decided to go into its territory they would know that this territory actually belongs to other strepsirrhini.
Behavior 2
When strepsirrhini are going into new territory, they usually move in large groups such as lemurs. They do this so that they could spread the area to see are there predators out there. If there is a predator attacking them, they split into small groups so they could lessen the chance of being caught by predators.As strepsirrhini does not have attack power except for the smell, they move in big groups so they could lower their chance of being caught by their predators.
Structual
Nose (structual 1):Their moist nose is actually connected to the upper lip, which connects to the gum so they could not have much facial expression. This is unique because lemur and other animals like the monkey and baboons did not have their noise connected to their upper lip.
Environmental Pressure
This helps them so they could help them breath easier. Also, other cowardly animal saw strepsirrhini's facial expression they might run away because they felt scared.
Toothcomb (structual 2):
Strepsirrhini have toothcomb, which is tightly clustered incisors and it is canine teeth. They use the toothcomb to groom themselves so they could have a better appearance. They also use this to grab the trees and branches to swing around in order to get food.
Environmental Pressure
As strepsirrhini might not have any thing to grab the trees and branches at the past, they have evolved toothcomb so they could grab trees and branches easier to run away and get food.
Physicological
Brain of Strepsirrhini
Strepsirrhini's brain and body ratio is smaller so they have a lower intelligence, unlike lemur. However, their brain's olfactory lobes are larger, therefore they strongly reliance on smell. Other animals such as Coyote and Wolves are also depending on smell.
Ears of Strepsirrhini
Strepsirrhini's ears are very sensitive, allowing them to move independantly on their own, so they can capture sound even more clearly than other mammals. If there is a predator coming close, they could hear the noise that they make and run into the opposite direction.
Environmental Pressure
As strepsirrhini does not have weapons except for smell, so they have ears so they could sense predators and preys.
Extinct Pressure
Strepsirrhini are in a danger or extinction because of human hunting them for pets, illegal trade and money. All of this happened because of human's greed and their needs. Also there are temperature changes in the environment so they might not be able to get used to the new environment.Bibilography:
Wikimedia Foundation.(2010). Strepsirrhini. Retrieved July 27, 2010, from http://en.wikipedia.org/wiki/Strepsirrhini